Paper-creasing machine.



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m M W E T 4,2 mm @N %N m w m M N6 T IMWV T A A. G. DOWNING. PAPER GBEASING MACHINE. APPLICATION Hum 001-. 17, 1908.

Patented Mar. 10, 1914.

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513m 0. DOWNING, OF MILWAUKEE,

Specification of Letters Patent. Application filed October 17, 1908. Serial Ro. 458,207.

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Patented Mar. 10', 1914.

Tool] whom it may concern:

Be it known that I, ALBERT G. Dowumo residin in Milwaukee, in the county Milwai cc and State, of Wisconsin, have Invented new and useful Improvements in Paper-Greasing Machines, of which the following is a description, reference being had to the accom anying drawings, which are a part of this specification.

My invention has relation to improvemehts in paper creasing machines.

in the creasing of aper or cardboard through the medium 0 paper creasing machinery, it is frequently the case that the cardboard is of such thickness that the retary creasing device is incapable of making a crease of sufiicient depth to enable the cardboard to be readily folded along the crease line. 7

it is therefore the primary object ot my inventihn to provide improved mechanism in connection with creasing machines which wili ohvia'te the above pointed out dificulty by automatically moistening or dampening the cardboard in advance of the action of the creasin mechanism on the cardboard, the line 0- wetting or moistening being along a line corresponding to the creased line desired to be made.

With the above primary object, and other incidental objects, in view, the invention consists of the devices and parts, or their equivalents, as hereinafter set forth.

in the accompanying drawings, Figure l is a front elevation of a rotary creasing machine equipped with my improvements, parts being broken away; Fig. 2 is a transverse section on the line 2r-2 of Fig. 1.; Fig. 3 is a vertical section through the nozzle of the moistenin-g device; Fig. 4 is a plan view of Fig. 3; Fig. 5 is a wow of the mechanism for holding the paper or cardboard to the table; and Fig; h is a plan View of Fig. 5;

Referrin to the machine in connection with whic my im rovements are employed, the numeral indicates the lower portion of the frame, which is in the form of a supportin table having slotted standards 8 8 exten ing upwardly from OPPOSll'B ends thereof. Within the lower endsof the slots of the standards, and seated in the bottom of said slots, are bearings 9, 9. The bearings 9 are pr vided with upwardly extending bosses 10, each boss being formed at its upper end wit'h a cup shaped enlarge- .lower ends of screws 17 from contac ment 11. Above the bearings 9 are other bearlngs 12, 12 movable in and uided by the slots of the standards 8. 5e ending from the under sides'of these bearings are bosses 13, the lower end of each boss being provided with a cupped enlargement 14. Two stifl' coiled springs 15 are rovided, and thelower'end of each of sai springs 1S seated in the lower cup ed enlaigement 11, and the upper end of each spring is seated in one of the upper cupped enlargements 14. From the upper side of each upper bearmg 12 extends a boss 16. Passmg through a threaded opening formed in the upper closed end of each slotted standard 8 is a screw 17. The upper ends of the screws are provided with hand wheels 18, for convenience in turning, and the lower ends of the screws are adapted to contact wlth, or to be brought into contact with, the upper ends of the bosses 16.

Journaled in the lower bearings 9, 9 is a lower shaft 19 and journaled in the upper bearings 12, 12 is an upper shaft 20. Mounted on the lower shaft are a series of wheels 21, each wheel having a creasing rib 22 peripherally therearound. These wheels are adjustably mounted on shaft 19 by means of set screws 23 passing through the hubs of said wheels and engaging the shaft. Mounted on the upper shaft 20, and adapted to cotiperate with the wheels 21, are other wheels 24, each having agroove 25 extending peripherally therearound. The wheels 24 are also adjustable by means of set screws 26 extending throu h the hubs thereof and engaging the shai t. Wheels 21 and 24 are similarly set on their respective shafts, so that in the rotation of the wheels the ribs 22 of wheels 21 will register with and engage the grooves 25 ofwheels 24. It is usual to employ four wheels oneach shaft, and I therefore show this particular number in the accompanying drawings.

By the employment of the specific form of bearings for the shafts 19 and 20, and the specific mechanism in connection therewith, hereinbefore described, the shafts may be made to approach or recede from each other, in order to cause the wheels 21" and 24 to be brought into more or less close engagement peripherally. When it is desired that the distance between the wheels be increased, the screws 17 are turned upwardly, and this will have the effect of withdrawing the with 40 vices, specifically shown 1n Figs. 5 and 6 of the bosses 16.

will then immediately expand and force the upper bearings 12 "upwardly, and thereby cause a continuation of theoontact between the bosses 16 and the ends of the screw rods. The space, therefore, between .the periphcries of the creasin wheels is thereby necessarily increased. en it is desired to bring the creasing wheels into closer relation peripherally, the screwrods are turned down-- i belt (not shown) leading from any suitable source of power is adapted to be passed. The rotation of the lower shaft 19 is conveyed to the upper shaft 20 through the medium of a toothed wheel 28 mounted on shaft 19 and meshing with a similar wheel 29 mounted on shaft 20.

j Extending forwardl and suitably supporte is a table 30 upon which the cardboard or aper-to be creased is laid. This table is isposed on such a plane that the paper orcardboard placed from the machine,

thereon, will, when forcedtoward the creasin wheels, pass between the peripheries of said wheels. On each side of the table are guide strips 31, '31.

Just above the rear end of the table, and slightly in advance of the rollers, is a transverse rod 32, the'ends of said rod being suported in suitable supports 33, 33 projecting orwardly from the uprights 8. On this rod are adjustably mounted the drawings. Each of these devices consists of a split collar 34, having tongues 35, 35 extending from the split. The rod 32 passes through the opening of each collar, and said collar is held at adjusted position on'the rod by means of a clamping screw 36 turned throu h the tongues 35. Projecting forwardly rom each collar is a short arm 37, and to this arm is connected one end of a curved spring pressure finger 38. This spring finger is curved forwardly, with the lower or terminal end thereof extending rearwardly and'resting on the table so asto exert a yielding pressure on the paer or cardboard. I

The machine as thus far explained is a well known type of rotary creasing machine, and a description and. illustration thereof have been given, so that the application of my invention thereto and lts combination therewith will be readily understood.

Referring now particularly to the imrovements, it will be seen that I provide an upper water tank 39, which is supported on .The coils of the springs 15,

or forced apart to unclamp,

paper pressing de- .2

' wheels pulled between the line therealong.

: of the creasing wh a beam 40, said beam connecting the upper ends of the slotted uprights 8. Communicatin flexib e tubes 41, the number of said tubes corresponding to the number of thepairs or sets of creasing wheels employed. Each tube is equipped with a cock 42 located preferably at the upper end of the tube and near the side of the water tank. The lower end of each tube fits over the up er end of a nozzle 43. The lower end of each nozzle is enlarged to form a chamber 44 with which the lower end of the bore of the nozzle communicates. Into this chamber is inserted the upper end of a sponge 45, said sponge with this water tank are a series of.

being held in the chamber by any desirable means, as, for instance, by means of a transverse in or small nail 46. The front side of eac nozzle, at approximately a central point thereof, is provided with a split collar 47, said collar having an opening through which the rod 32 passes. The clamp is split, and provided with fingers 48,

48 extending from the split. These fingers I are brought together to effect a clamping by means of clamping screws 49..

In the operation of my invention, the paand pushed along said paper beneath the pressure fingers 38 and beneath the sponge of the moistening device, the advancing edge of the paper being brought into the space bel per or cardboard'is placed on the table 30,

tween theperipheries of the creasing rollers. The machine is now set in motion, j:he belt wheel being rotated in the direction of the arrow, Fig. 1. Through the intermeshing gears 28 and 29, the two shafts l9 and 20, and consequently the creasing wheels carried thereby are rotated in opposite directions. The paper or cardboard is of course, by reason of the rotation of the creaser eripheries thereof, and the ribs 22 will in cardboard, and make a continuous crease Previous to the making of the crease line, however, the sponges, which rest on the paper or cardboard, moisten the paper along a line corresponding to the line to be creased.

In creasing machines it is frequently necessary to change the distance of the creased lines apart. This of course renders it essenint cut the paper or tial that the creasing wheels or creasing mechanism be adjustable laterally with respect to each other. It is for this reason that the set screws 23 and 26 are provided which pass through the hubs of the creasin wheels and enable this adjustment to be e fected. Of course when the creasing wheels are adjusted, it is necessary that the moistening or dampening mechanism be likewise adjusted, to correspond to the changed position eels. It is for this reason that I provide the clamp 47 in connection with the nozzles 43, and by loosening the set screws 49 the said clamp and nozzle may be readily moved along the rod- 32 to the desired position, and when such position is reached the clamping screws are again tightened. The clamps in connection with the pressure fingers also permit the said cooperating creasing wheels mounted on the other of sald shafts, means for adjusting the said wheels laterally on their shaft, the provision for the lateral adjustment of the two sets of creasing wheels permitting of the regulation of the distance apart of the creased lines, moistening devices located forward of and in line with the creasing wheels, and on a plane, or substantially a plane, with the point of meeting of the peripheries of said wheels, said moistening devices adapted to form, previous to the action of the creasing wheels on the material, a pluralit of moistened or dampened lines, upon whic 1 lines the creasing wheels subsequently act, and said moistening devices carrying at their lower ends a sponge or other foraminous material, and having a duct leading to the sponge, and also provided with a horizontally projecting clamping means, a transverse rod which the clamping means of the moistening devices adjustably engage, a water reservoir supported on the frame at an elevation to the moistening devices, and flexible tubes leading from the reservoir to the moisteningdevices and registering with the ducts of said moistening devices.

In testimony whereof, I ailix my signature, in presence of two witnesses.

ALBERT o. DOWNING.

Witnesses:

E. J. HAASCH, A. K. WEST. 

